الفهرس 
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Abstract
The present mvestigation was designed to study the bacteriological
quality of 100 samples comprised four species of marine water fish
namely (Sardine, Mullus spp. (Morgan), Pargus spp. (Barbone) and
Clirysophyres (Dims)) (25 of each) which were collected from
commercial fish markets in Alexandria govemorate over a period of 6
months. I
So, this study was designed to throw a light on the hygienic quality
of four common marme fishes sold in these markets
Regarding to the microbiological status of the examined fishes,(
Sardine, Mullus spp., Pargus spp. and Chrysophyres) the mean Total
Bacterial counts values were 3.95 x 106 ± 1.26 x 106, 3.67 x 106±0.798
x106,382x106±0786 xlO6and2l6xlO6±0587x106CFU/g
,respectively, the mean total Enterobacteriaceae counts values were 6 57
x104±232xl04,335x105 ±0731x105,318x105 ±0752x105
and 1.76 x io5 ± 0.522 x i0 CFU/g ,respectively, the mean total
coliforms counts values were 8.09x io3 ±2.59x io3, 1.24x io ± 0.379
x io, 1.32x to ± 0.418 x io5 and 4.07 x io± 1.81 x l0 CFU/g
,respectively, the mean total enterococci counts values were 6.04 x 1o3-f-
2.81 x 10’, 2.05x io4 ±0.6x io, 1.4lx 10± 0.43 x iO’ and 2.41 x io4 H
± 0.596 x io CFU/g ,respectively, While the mean total staphylococci
counts values were 2.82 x io’± 0.723 x io3, 3.96 x io3± 0.907 x 10’, ____
3.18 x lo’± 0.811 x io3 and 5.28 x 1o’± 1.41 x 10’ CFU/g ___
,respectively,
The incidences of different organisms in the examined fish species
namely, Sardine, Mullus spp., Pargus spp. and Chrysophyres for total
Enterobacteriaceae were 84, 92, 100 and 92 % respectively, for total
coliforms 72, 92, 100 and 92 % respectively, for total Enterococci 84,
100, 100 and 100 % respectively and for total Staphylococci 92, 100, 100 .4”
and 100 % respectively for the aforementioned fish species. . ii.,
Correlation between the microbiological load and fish species
results in non statistically significant differences in the mean total
bacterial counts and total Staphylococci counts between the four
aforementioned examined fish species.
While, there are correlation between the microbiological load and
fish species results in statistically significant differences in the mean total
Enterobacteriaceae counts between Sardine species (in one arm) and
Mullus spp. and Pargus spp. (in the other arm).
Also, Correlation between the microbiological load and fish F
species results in there was no statistical significant difference between
the mean of total coliforms counts of Sardine and Chrysophyres, and also
WE
there is no statistical significant difference between the mean of total
coliforms counts of Mullus spp., Pargus spp. and Chrysophyres. But,
there was a statistical significant difference between the mean of total
coliforms counts of Sardine (in one arm) and both Mullus spp. and Pargus
spp. (in other arm).
And, Correlation between the microbiological load and fish species
results m there was no statistical sigmficant difference of means
Enterococci counts value between Sardine and Pargus spp.